From a long-term trading results perspective, different rules will definitely lead to differences in capital returns. Higher returns naturally align better with price trends, which is the conceptual advantage. Trading is essentially trading your concepts, and the specific entry points are also products of those concepts.
Therefore, one should not rigidly fixate on which point to go long and which point to go short. Both long and short can be correct; prices move continuously, and this 'continuity' can lead to many changes, with only rules being able to handle price fluctuations.